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Heart Rate Troubleshooting
5. Connect Heart Rate Board straight to
the display input.
• By-pass the Combiner Board, insert the heart
rate wires straight to the display.
See Diagram #3 & 3a. After connection has been
repeat step 1.
REPLACE: Combiner Board if Heart Rate
registers. If no Heart Rate is registered go to
step 6.
NOTE: Step 5 can only be performed if the
software includes both Polar and Contact.
6. Check continuity/resistance between
Heart Rate grip rings and input wires.
• Disconnect both heart rate grip inputs (red &
black wires) from back of display.
• Using a Multi-meter check continuity between
the heart rate rings and its corr-
esponding output wires.
• Red wire = outside rings.
• Black wires = inside rings.
NOTE: See Diagram #4.
REPLACE: Heart Rate grip(s) if reading is
greater than 1.0Ω
7. Check continuity/resistance of each
hand rate grip.
• Using a Multi-meter check continuity between
the two rings on the same grip.
• Black meter probe to inside ring and red
meter probe to outside ring.
NOTE: See diagram #5.
REPLACE: Heart Rate grip(s) if reading is lower
than 3 MΩ.
8. Check continuity/resistance between
the two hand rate grips.
• Measure the resistance between the two
outside rings.
NOTE: See diagram #6.
REPLACE: Heart Rate grip(s) if reading is
less than 18.0Ω
4.18
Dia
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ram 6
Dia
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ram 5
Dia
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ram 7
Dia
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ram 4